VP Aviation is discounting discussion on forums and comments that its proposed unleaded fuel won't be suitable for big displacement engines, particularly radials. VP Aviation's fuel, which is being developed in partnership with Lyondell/Basell, is the last one going through the FAA's Piston Aviation Fuel Initiative (PAFI) which, if successful, will lead to a "fleet authorization" permitting its use in all gasoline-powered engines.
This is a companion discussion topic for the original entry at https://www.avweb.com/aviation-news/vp-racing-responds-to-fuel-suitability-comments